R-value
n. 热阻（材料抗热流能力的量度）
🧩 词语组成解析
🗣️ 情景例句
... Oh, oh, I see.... Oh ... certainly.
……嗯 嗯 我知道了。……嗯……一定。
Never swap (or swop) horses while crossing the stream.
骑渡中流莫换马。（指危难时不宜做大变动）
The leader of the party was examining the soil near the entrance to the cave when the machine showed that there was gold under the ground.
当这个队的队长正在检查洞口附近的土壤时，那台机器显示出它的下面埋有金子。